Some 300,000 General Electric employees will start using Box as their corporate file-share and collaboration product, Box said Thursday.

GE is a new customer to Box, and an obviously huge one. This news comes at an opportune time for the Los Altos, California based company, which is competing not only with Dropbox for business accounts but with Microsoft and Google as well. In its S-1 filing, however, the company admits profitability is a ways off.